/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMNode.h
Returns true if this is an injected node. Injected nodes are managed by pins are are not visible to the user.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RigVMNode) bool IsInjected() const